如何解决ConnectionError？

Python中用requests模块抓取资料，可以出现我想要的资料，但是资料并不完整，后面会出现ConnectionError，可以怎么解决？我已经设置了Timeout。

from pprint import pprint
import requests
import json

dict_num = dict()
for num in range(1,1771):
    url_api = "http://api.jisuapi.com/bencao/detail?appkey=bdc8ee0bb0227112&detailid={n}&isdetailed={n}".format(n=num)
    r = requests.get (url_api,timeout=60)
    data = r.json()
    pprint (data)
    detail2 = data
    pprint (detail2)
with open ("bencao_detail2", mode="w", encoding="utf8") as file:
    json.dump(detail2, file)